Where is the heater going to pull it's air from then? The Fresh Air Heater was designed to pull the air from outside. If you don't want that, cover the vent and replace your heater with the Recirculating Heater.


Jeff Nelson

"Beer is proof that God loves us and wants us to be happy." - Benjamin Franklin
"Always do right. This will gratify some people and astonish the rest." - Mark Twain